Would anyone suggest wrapping the downpipe or other areas with the heat wrap people use on their turbo cars? I would like to keep heat out of my engine bay because the stock heat shield no longer fits after the downpipe. I am pulling of my ****ty mp performance downpipe and replacing it with an obx. Also should I install an angled defouler with the obx? Im currently getting two cels for no activity detected as well as high voltage. Both sensors are reading voltage though but this sensor is for bank 1 sensor 2 so after the cat.